Infinite Worlds: Collegio Januari
GURPS Infinite Worlds describes Infinity Unlimited¸ a mega-corporation that uses high technology to cross between parallel worlds.
But what if the world-jumpers were not technicians¸ but wizards? What if Janus himself¸ the god of doorways¸ shared the spells and rituals needed to break through the quantum walls? The answer: Collegio Januari. It's a powerful guild of wizards¸ piercing the veil between their world and others¸ searching for knowledge¸ wealth... and mana.
Written by Kenneth Hite¸ this campaign setting brings world-hopping to the traditional fantasy genre. It can be dropped into either a GURPS Infinite Worlds or GURPS Fantasy campaign¸ and can be easily adapted to any low-tech game featuring wizards and knights.